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JPL Small-Body Database Browser
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C/2015 V2 (Johnson)
Classification: Hyperbolic Comet          SPK-ID: 1003415
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2457771.5 (2017-Jan-18.0) TDB
Reference: JPL 53 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.001702846004676 7.5632e-07  
a -961.302420156157 0.42681 au
q 1.636949985448245 5.5523e-07 au
i 49.87480898168563 6.0853e-06 deg
node 69.85209858965102 8.4709e-06 deg
peri 164.8980781734215 2.9306e-05 deg
M -.004806415877941709 3.1997e-06 deg
tp 2457916.847419366875
(2017-Jun-12.34741937)		 4.5478e-05 TDB
period n/a
n/a		 n/a
n/a		 d
yr
n 3.306846381503146E-5 2.2023e-08 deg/d
Q n/a n/a au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 2.286714636607916E-8 4.056E-10
A2 [EST] -4.439976970906909E-9 3.267E-10
A3 [EST] -4.37470226177812E-9 1.784E-10
   Orbit Determination Parameters
   # obs. used (total)      5882  
   data-arc span      1750 days (4.79 yr)  
   first obs. used      2015-01-11  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .41296  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:49:39  

Additional Information
 Earth MOID = .642464 au 
 Jupiter MOID = 3.349 au 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 7.5   1. 53 from 683 observations, assumed slope, autocmod 2.8
comet total magnitude slope K1 8.   n/a 53 autocmod 2.8
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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